Warm Springs Hydro Project
Hydro power plant in Sonoma County, California. 2.7 MW of nameplate capacity across 1 generator, operated by Sonoma County Water Agency - (CA).
Also known as EIA plant 54261
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 2.7 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- December 1988First generator online
- Operator
- Sonoma County Water Agency - (CA)EIA operator ID 21944
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Sonoma County, CA38.7221, −123.0112
- EIA plant ID
- 54261EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Warm Springs Hydro Project produces
Free · EIA-923Net generation, 2025
0 MWh
0 MWh, final
Capacity factor, 2025
0.0%
2024: 0.0%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
0.0–10.3
GWh a year. Low 2019, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 13,877 | Not reported | 12 of 12 |
| 2002 | 15,602 | Not reported | 12 of 12 |
| 2003 | 15,828 | Not reported | 12 of 12 |
| 2004 | 14,104 | Not reported | 12 of 12 |
| 2005 | 14,664 | Not reported | 12 of 12 |
| 2006 | 14,809 | Not reported | 12 of 12 |
| 2007 | 11,793 | Not reported | 12 of 12 |
| 2008 | 14,020 | Not reported | 12 of 12 |
| 2009 | 9,794 | Not reported | 12 of 12 |
| 2010 | 14,422 | 61.0% | 12 of 12 |
| 2011 | 13,341 | 56.4% | 12 of 12 |
| 2012 | 11,305 | 47.7% | 12 of 12 |
| 2013 | 13,182 | 55.7% | 12 of 12 |
| 2014 | 9,404 | 39.8% | 12 of 12 |
| 2015 | 10,267 | 43.4% | 12 of 12 |
| 2016 | 8,952 | 37.7% | 12 of 12 |
| 2017 | 3,356 | 14.2% | 12 of 12 |
| 2018 | 3,162 | 13.4% | 12 of 12 |
| 2019 | 0 | 0.0% | 12 of 12 |
| 2020 | 0 | 0.0% | 12 of 12 |
| 2021 | 0 | 0.0% | 12 of 12 |
| 2022 | 0 | 0.0% | 12 of 12 |
| 2023 | 0 | 0.0% | 12 of 12 |
| 2024 | 0 | 0.0% | 12 of 12 |
| 2025 | 0 | 0.0% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · CAISOEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 3385 | Conventional Hydroelectric | 2.7 | December 1988 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Sonoma County Water Agency - (CA) as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Questions about Warm Springs Hydro Project
How much power does Warm Springs Hydro Project produce?
Warm Springs Hydro Project reported 0 MWh (0 MWh) of net generation in 2025.
Where is Warm Springs Hydro Project?
Warm Springs Hydro Project is in Sonoma County, California, at 38.7221, −123.0112. It is in the California Independent System Operator balancing area (CISO).
Who operates Warm Springs Hydro Project?
EIA-860M for August 2026 lists Sonoma County Water Agency - (CA) as the operator (EIA operator ID 21944). The operator is not always the owner.
When did Warm Springs Hydro Project start operating?
Its first generator began operating in December 1988, according to EIA-860M.
Does InfraMap have power prices for Warm Springs Hydro Project?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Warm Springs Hydro Project, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page